公开(公告)号：US5365636A

公开(公告)日：1994-11-22

申请号：US143995

申请日：1993-10-27

Applicant: James N. Jensen

Inventor： James N. Jensen

IPC: E05F1/08 ,  E05F1/10 ,  E05F3/00

CPC classification number: E05F1/16 ,  E05F1/1091 ,  E05Y2201/478 ,  E05Y2201/67 ,  E05Y2900/132 ,  Y10T16/282 ,  Y10T16/593

Abstract: A sliding door closer for automatically returning a sliding door to a closed position includes a gas spring having a cylinder and a rod slidingly received thereby. Pressurized gas within the cylinder urges the rod to an extended position. A block and tackle pulley system is secured to the opposing ends of the gas spring for rotatably supporting a cable extending between the sliding door and the door jamb. The gas spring rod is compressed as the door is opened. Extension of the gas spring rod causes the door to close when released. A piston secured to the gas spring rod has an orifice therein for causing the rod to extend at a controlled rate. The cylinder includes a quantity of oil to cushion the final extension of the rod to further slow the final closing of the door. The gas spring and pulley system fit compactly within the frame of the door or within a tubular housing secured to a side of the door.

Abstract translation: 用于将滑动门自动返回到关闭位置的滑动门关闭装置包括具有滑动地接收的气缸和杆的气弹簧。 气缸内的加压气体将杆推向延伸位置。 块和滑轮系统固定到气弹簧的相对端，用于可旋转地支撑在滑动门和门侧柱之间延伸的电缆。 当门打开时，气弹簧杆被压缩。 气弹簧杆的延伸使得门在释放时关闭。 固定到气弹簧杆的活塞在其中具有孔口，用于使杆以受控的速度延伸。 气缸包括一定数量的油以缓冲杆的最终延伸部分，以进一步减慢门的最终关闭。 气弹簧和滑轮系统紧密地配合在门的框架内或者固定在门侧面的管状壳体内。